Deformation and wear of Hadfield steel single crystals under dry sliding friction

Лычагин, Д. В.; Филиппов, А. В.; Novitskaya, O. S.; Колубаев, А. В.; Moskvichev, E. N.; Фортуна, С. В.; Chumlyakov, Yu. I.

doi:10.1016/j.wear.2021.204126

Cited by 10 publications

(3 citation statements)

References 39 publications

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“…A turning-point of the 'σ-ε' curve corresponded to a strain of 5%, coinciding with the beginning of the twinning process and decreasing the strain hardening coefficient (θ) (discussed in detail below). In many papers [1,20,24,[49][50][51][52][53][54][55][56][57][58][59][60][61][62], the high hardenability of the Hadfield steel was highlighted when studying the mechanical properties of both poly [1,20,[55][56][57][58][59][60][61] and single crystals [1,20,24,[59][60][61][62]. At the same time, high values of the strain hardening coefficient (θ) and the linear nature of the 'σ-ε' dependence of the 110G13 Hadfield steel were associated with both sliding deformation and mechanical twinning.…”

Section: The 'σ-ε' and 'θ-ε' Dependencesmentioning

confidence: 99%

Relationship of Internal Stress Fields with Self-Organization Processes in Hadfield Steel under Tensile Load

Попова

Slobodyan

Klopotov

et al. 2023

Metals

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The effect of tensile strains on the microstructure of Hadfield steel was studied by transmission electron microscopy (TEM). Stages of the obtained stress–strain curves were observed, and correlated well with the evolution of the dislocation substructure. Based on an analysis of TEM images, quantitative parameters were determined, such as the material volume fractions, in which slip and twinning occurred, as well as twinning, which developed in one, two and three systems. Some transformation mechanisms were reported that caused great hardening of Hadfield steel. In particular, a complex defect substructure formed in a self-organized manner due to the formation of cells, the dislocations retarded by their walls, as well as the deceleration of dislocations on twins and, vice versa, of twins on dislocations. These factors affected both the average and excess local density of dislocations. Additionally, they resulted in elastic stress fields, which manifested themselves in the curvature–torsion gradient of the crystal lattice. A high level of stresses caused by solid-solution strengthening prevented the relaxation of elastic ones, contributing to the strain hardening of the Hadfield steel.

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Section: The 'σ-ε' and 'θ-ε' Dependencesmentioning

confidence: 99%

Relationship of Internal Stress Fields with Self-Organization Processes in Hadfield Steel under Tensile Load

Попова

Slobodyan

Klopotov

et al. 2023

Metals

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“…Therefore, Hadfield steel has been widely used in the wear materials of engineering fields, including mining, steelmaking, railroad, and cement products [4][5][6][7][8]. References [9,10] have mainly focused on high manganese steel with elements of 1.0-1.4 wt% C and 10-18 wt% Mn achieved a better combination of high ductility and strength and performed favorable wear resistance under severe impact conditions.…”

Section: Introductionmentioning

confidence: 99%

Influence of aging treatment on mechanical properties and wear resistance of medium manganese steel reinforced with Ti(C,N) particles

et al. 2023

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In this study, the hot rolled medium manganese steel containing titanium was solution treated at 1,000 °C and followed by aging treatment at 500, 550, and 600 °C. The influence of aging treatment on mechanical properties and wear resistance of medium manganese steel reinforced with Ti(C,N) particles was investigated. It was found that the matrix of medium manganese steel was austenite. The austenite grain size was refined, and Ti(C,N) particles were precipitated after aging treatment. Compared to that of the as-hot rolled sample, the initial hardness of 500 °C aged sample increased by 9.5% to 312.86 HV, whose impact energy was more than doubled to 148.5 J. As the aging temperature raised to 600 °C, the initial hardness changed slightly. However, the impact energy dropped significantly to 8 J due to the aggregation of Mn at the grain boundaries. In addition, the main wear mechanisms of the samples were fatigue wear and abrasive wear. It was worth noting that 500 °C aged sample exhibited the best wear resistance under a 300 N applied load, whose wear loss was just half of the as-hot rolled sample. The relationship between wear loss and mechanical properties indicated that the wear resistance of medium manganese steel was independent of the initial hardness. The large difference in the wear resistance was predominately due to the outstanding work hardening ability of 500 °C aged sample, whose strengthening mechanisms were contributed from transformation induced plasticity (TRIP) effect, dislocation strengthening, twinning induced plasticity (TWIP) effect, and precipitation strengthening.

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“…В физике пластичности в экспериментальных исследованиях главных закономерностей и особенностей пластической деформации традиционно [7] используются монокристаллы. Отсутствие в них границ зерен и постоянство свойств по всему объему позволяют в этом случае наиболее точно представить основные элементы кристаллографии скольжения, выделить стадии процесса и связать их с особенностями дефектной структуры и ее эволюцией [8]. Сравнительные испытания, проведенные на монокристаллах с разными кристаллическими решетками, позволяют также установить принципиальное различие в кристаллографии скольжения и закономерностях деформационного упрочнения, характерных для кристаллов, принадлежащих разным сингониям.…”

Section: Introductionunclassified

Localized deformation at initial stages of plastic flow in high-manganese steel

Баранникова

2022

Izv. vysš. učebn. zaved., Čern. metall.

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The work is devoted to the study of macroscopic localization of plastic deformation during uniaxial tension of single crystals of the Hadfield steel (Fe – 13 % Mn – 1.03 % C). In the course of studies at the stage of easy sliding, significant differences were found in the nature of macrolocalization of plastic deformation in the single-crystal samples under study. All patterns of deformation localization observed in these cases can be divided into two types. The first type of strain localization corresponds to the initiation at the upper yield point and further propagation of the strain front, which gradually transfers the sample material from undeformed state to deformed one. This manifested itself most clearly in single crystals oriented along the tension axis [377] and [355], where the strain localization pattern appears as a single zone of localized deformation on the yield plateau. Such a deformation front passes through the sample volume only once as a Chernov-Luders band. In this case, the flow of the material is carried out without hardening until all its elements are transferred to the deformed state. Single zones of strain localization were also observed at the stages of easy sliding and yield plateau in the Hadfield steel single crystals oriented along the tension axis [123] and [012]. In the second type of localization, at the stage of easy sliding, synchronous movement along the pattern of several deformation centers occurs. Their movement can be unidirectional and counter, and the speeds are both the same and different from each other. Further deformation of the Hadfield steel single crystals oriented along the tension axis [355] or [012], led to the movement of two deformation localization centers at the stages of easy sliding. In single crystals oriented along [111], the strain localization pattern is respectively represented as four localized strain sites. Consequently, the synchronous movement of deformation fronts occurs along an already deformed, albeit to a small extent, material. As a reason for the difference between the two types of macrostrain localization at stage I (the easy sliding stage and the yield plateau), the number of active sliding systems or tensile twinning in the studied single crystals can be discussed based on crystallographic analysis and metallographic studies.

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Deformation and wear of Hadfield steel single crystals under dry sliding friction

Cited by 10 publications

References 39 publications

Relationship of Internal Stress Fields with Self-Organization Processes in Hadfield Steel under Tensile Load

Relationship of Internal Stress Fields with Self-Organization Processes in Hadfield Steel under Tensile Load

Influence of aging treatment on mechanical properties and wear resistance of medium manganese steel reinforced with Ti(C,N) particles

Localized deformation at initial stages of plastic flow in high-manganese steel

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